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  <section>
    <title ID="header">Paragraph</title>
    <para>
      <table>
        <thead>
          <row>
            <entry>
              <para>Title 1</para>
            </entry>
            <entry>
              <para>Title 2</para>
            </entry>
          </row>
        </thead>
        <tbody>
          <row>
            <entry>
              <para>Cell 1.1</para>
            </entry>
            <entry>
              <para>Cell 1.2</para>
            </entry>
          </row>
          <row>
            <entry>
              <para>Cell 2.1</para>
            </entry>
            <entry>
              <table>
                <thead>
                  <row>
                    <entry>
                      <para>Title 1</para>
                    </entry>
                    <entry>
                      <para>Title 2</para>
                    </entry>
                  </row>
                </thead>
                <tbody>
                  <row>
                    <entry>
                      <para>Cell 1.1</para>
                    </entry>
                    <entry>
                      <para>Cell 1.2</para>
                    </entry>
                  </row>
                  <row>
                    <entry>
                      <para>Cell 2.1</para>
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                    <entry>
                      <para>Cell 2.2</para>
                    </entry>
                  </row>
                </tbody>
              </table>
            </entry>
          </row>
        </tbody>
      </table>
    </para>
  </section>
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